A homosexual activity, which involves an
individual "
Jacking off" a minimum of 10 other gentlemen in a single night/party/event. Only once all 10 men have ejaculated can the
act be called a Jackzacker.
Brad: Last night at the club i Jacked off 15 blokes
Shane: thats a great Jackzacker-ing
Brad: yep once I
hit 12 my right wrist got sore so I had to use left
Shane: is that a record?
Brad: yep my jackzacker record was 13 not its 15!